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e10cd4b009
This defines and exports a platform specific custom vm_get_page_prot() via subscribing ARCH_HAS_VM_GET_PAGE_PROT. This also unsubscribes from config ARCH_HAS_FILTER_PGPROT, after dropping off arch_filter_pgprot() and arch_vm_get_page_prot(). Link: https://lkml.kernel.org/r/20220414062125.609297-6-anshuman.khandual@arm.com Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: David S. Miller <davem@davemloft.net> Cc: Khalid Aziz <khalid.aziz@oracle.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
17 lines
503 B
C
17 lines
503 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _ASM_X86_MMAN_H
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#define _ASM_X86_MMAN_H
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#define MAP_32BIT 0x40 /* only give out 32bit addresses */
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#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
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#define arch_calc_vm_prot_bits(prot, key) ( \
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((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \
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((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \
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((key) & 0x4 ? VM_PKEY_BIT2 : 0) | \
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((key) & 0x8 ? VM_PKEY_BIT3 : 0))
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#endif
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#include <asm-generic/mman.h>
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#endif /* _ASM_X86_MMAN_H */
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